Cutting edge



FIG. 1 is front right bottom perspective view of a cutting edge of a knife blade with the rest of the blade and the handle shown in phantom line forming no part of the design;

FIG. 2 is a rear top left perspective view thereof;

FIG. 3 is a right side elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a front elevational view thereof;

FIG. 6 is a rear elevational view thereof;

FIG. 7 is a top plan view thereof; and,

FIG. 8 is a bottom plan view thereof. 

The ornamental design for a cutting edge, as shown and described. 